通信学报 ›› 2018, Vol. 39 ›› Issue (3): 95-107.doi: 10.11959/j.issn.1000-436x.2018039
李光辉1,2,3,胡世红1,3
修回日期:
2018-02-14
出版日期:
2018-03-01
发布日期:
2018-04-02
作者简介:
李光辉(1970-),男,湖南郴州人,博士,江南大学教授、博士生导师,主要研究方向为无线传感器网络、容错计算、无损检测技术。|胡世红(1993-),女,江苏连云港人,江南大学硕士生,主要研究方向为无线传感器网络覆盖优化。
基金资助:
Guanghui LI1,2,3,Shihong HU1,3
Revised:
2018-02-14
Online:
2018-03-01
Published:
2018-04-02
Supported by:
摘要:
在野外环境部署大规模传感器网络时,往往采用随机部署方式,导致覆盖率不高。为此提出一种基于虚拟力(virtual force)扰动和布谷鸟搜索(CS,Cuckoo search)的移动传感器网络覆盖优化算法(VF-CS)。首先,对传感器节点进行Voronoi图划分,形成独立的泰森多边形(Thiessen polygon)。其次,对泰森多边形内的节点进行虚拟力的分析,将多边形顶点和邻居节点的作用力作为布谷鸟搜索位置更新的扰动因子。最后,通过布谷鸟搜索引导节点移动实现覆盖优化。仿真实验结果表明,与以往基于Voronoi图的覆盖优化算法相比,VF-CS算法提高了覆盖率,减少了节点平均移动距离。
中图分类号:
李光辉,胡世红. 基于VF-CS的移动传感器网络覆盖优化算法[J]. 通信学报, 2018, 39(3): 95-107.
Guanghui LI,Shihong HU. Coverage optimization algorithm based on VF-CS in mobile sensor network[J]. Journal on Communications, 2018, 39(3): 95-107.
表2
不同传感器节点数量下的区域最终覆盖率"
区域大小 | 节点个数(N) | VF-CS算法覆盖率 | BCBS算法覆盖率 | CBS算法覆盖率 | CIVDA算法覆盖率 |
90 | 0.989 9 | 0.989 8 | 0.972 0 | 0.928 3 | |
80 | 0.965 5 | 0.957 0 | 0.947 6 | 0.872 6 | |
100 m×100 m | 70 | 0.933 9 | 0.919 3 | 0.920 6 | 0.844 0 |
60 | 0.858 6 | 0.849 5 | 0.830 9 | 0.783 8 | |
50 | 0.809 0 | 0.773 2 | 0.754 4 | 0.698 6 | |
40 | 0.702 0 | 0.700 3 | 0.683 2 | 0.612 7 | |
340 | 0.987 2 | 0.978 6 | 0.978 8 | 0.907 7 | |
320 | 0.965 1 | 0.955 4 | 0.952 3 | 0.884 5 | |
200 m×200 m | 300 | 0.959 7 | 0.942 9 | 0.943 3 | 0.845 6 |
280 | 0.939 0 | 0.922 1 | 0.917 2 | 0.808 0 | |
260 | 0.904 3 | 0.891 3 | 0.883 7 | 0.799 3 | |
240 | 0.882 1 | 0.856 5 | 0.845 9 | 0.776 8 | |
1 000 | 0.983 6 | 0.974 6 | 0.968 7 | 0.879 9 | |
900 | 0.969 9 | 0.949 2 | 0.932 3 | 0.833 2 | |
350 m×350 m | 800 | 0.931 2 | 0.905 1 | 0.894 4 | 0.775 9 |
700 | 0.853 7 | 0.835 1 | 0.827 4 | 0.646 3 | |
600 | 0.776 8 | 0.746 4 | 0.714 4 | 0.597 6 | |
500 | 0.659 3 | 0.628 7 | 0.606 5 | 0.553 6 |
表3
实验1算法耗时"
区域大小 | 节点个数(N) | 算法 | |||
VF-CS耗时/s | BCBS耗时/s | CBS耗时/s | CIVDA耗时/s | ||
90 | 59.046 2 | 251.723 7 | 52.758 0 | 16.911 0 | |
80 | 57.353 8 | 178.180 0 | 47.789 2 | 14.983 1 | |
100 m×100 m | 70 | 39.680 0 | 118.417 4 | 50.691 6 | 15.829 2 |
60 | 44.431 9 | 131.474 0 | 39.778 4 | 14.601 2 | |
50 | 43.961 0 | 124.783 5 | 36.496 7 | 12.962 3 | |
40 | 33.454 0 | 108.393 2 | 33.846 3 | 11.335 9 | |
340 | 742.342 0 | 1 936.584 3 | 1 256.473 3 | 287.458 1 | |
320 | 704.561 0 | 1 843.874 0 | 1 189.490 0 | 260.569 0 | |
200 m×200 m | 300 | 650.460 0 | 1 729.332 0 | 1 054.730 0 | 252.650 0 |
280 | 639.212 0 | 1 696.370 0 | 998.543 0 | 238.791 0 | |
260 | 611.851 0 | 1 509.321 0 | 943.560 0 | 227.650 0 | |
240 | 598.443 0 | 1 393.428 0 | 885.430 0 | 216.314 0 | |
1 000 | 4 228.239 0 | 11 507.883 0 | 6 826.560 0 | 628.381 0 | |
900 | 3 832.467 0 | 10 458.660 0 | 6 243.489 0 | 537.246 0 | |
350 m×350 m | 800 | 2 548.260 0 | 6 644.470 0 | 4 573.630 0 | 483.620 0 |
700 | 2 003.724 0 | 5 075.567 0 | 3 229.692 0 | 448.493 0 | |
600 | 1 337.370 0 | 3 911.877 0 | 2 866.482 0 | 403.720 0 | |
500 | 1 072.951 0 | 3 407.689 0 | 2 247.266 0 | 377.633 0 |
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